Author

Changtao Miao

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Preprint Sep 2026

Agentic Tool-Augmented Reasoning for Explainable Image Forgery Detection

Conventional image forgery detection methods produce binary scores or pixel-level masks without interpretable evidence, while recent multimodal large language model (MLLM)-based approaches generate post-hoc explanations of predetermined classification results rather than reasoning from evidence. Inspired by the forensi...

Zhi-Ya Tan, Jing Huang, Chang-Tao Miao et al. · 0 citations

#artificial intelligence Preprint Sep 2026

PlanGuard: A Guardrail for Multi-Step Plan Safety in Embodied Agents

This work introduces PlanGuard, the first pre-execution detector that evaluates the physical safety of a complete multi-step plan in its current environment, and proposes Strong-Teacher Adaptive Compensation for On-Policy Distillation (STAC-OPD), which provides compact models with adaptive strong-teacher supervision al...

Jun-Chi Chen, Chang-Tao Miao, Yu Xiang et al. · 0 citations

Jul 2026

DT-Guard: Intent-Driven Reasoning-Active Training for Reasoning-Free LLM Safety Guardrail

DT-Guard is presented, a content safety guardrail model based on a Reasoning-Active Training, Reasoning-Free Inference paradigm, which demonstrates that reasoning supervision can be effectively internalized into low-latency safety discrimination.

Heng-Xiang Liu, Changtao Miao, Xinjie Yang et al. · arXiv.org · 0 citations